Sash-lock.



No. 653,458. Patented July :0, I900.

H.."A-. PADUETTE.

SASH LOCK.

(Application filed July 11, 1898.)

(No Model.)

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UNITED STATES PATENT OFFICE.

HERMAN A. PAQUETTE, OF CHICAGO, ILLINOIS.

SASH-LOCK.

SPECIFICATION forming part of Letters Patent No. 653,458, dated July 10, 1900. Application filed July 11,1898. Serial No. 685 ,714. (No model.)

To all whom it may concern.-

Be it known that I, HERMAN A. PAQUETTE, a citizen of the United States,residing at Chicago, county of Cook, and State of Illinois, have invented a new and useful Improvement in Sash-Locks, of which the following is a specification.

My improvement relates to that class of ratchet devices by which the window may be raised or lowered and locked at any desired point automatically, thus serving the purposes of ventilation and security combined. The device permits the upper sash to be lowered any part of its length and secured against any further upward or downward movement from the outside.

The device is illustrated in the accompanying drawings, in which- Figure 1 is a front elevation of a window, showingthe position of the sash-lockthereon. Fig. 2 is a vertical section of a window with a side view of the device. Fig. 3 is a plan view of the bolt-case. Figs. 4 and 5 are enlarged details.

Similar letters refer to similar parts throughout the several views.

On the face of one or both sides of the window-sash I attach vertically a ratchet-bar N, the sash being slightly countersunk to permit the. bar to be securely fastened by means of screws at the two ends of the bar.

through its central portion, is a T projection and designated by the letter B for the upper portion or flanges and R for the body, the ratchet teeth appearing laterally on both sides of the central T projection. A pawl L, divided at the end with an inwardly-projecting lug P on each side, forms a recess R and square open space S to permit the two sides of the pawl to engage with the ratchets on the bar N and inclose and slide on the T projection on the ratchet-bar.

A bolt-case B is arranged to fit on the top of the lower sash, facing. the ratchet-bar, so

as to permit the pawl L to enter into engagement with the ratchet-bar N. The case is open at the end from which the pawl projects to permit the free movement of the pawl and bolt in the case. The opposite end is partially closed, permitting only the opposite Integral with the ratchet bar N, longitudinally end of the bolt to project through the center, and to which is attached a detachable knob K. The pawl at the end of the bolt provides a shoulder against which the spiral spring S is thrust, the opposite end resting against the end of the case. The object of this spring is to hold the pawl L in engagement with the ratchet-bar. A recess N is sunk into one side of the bolt in the case,which when drawn back engages with the edge 0 of the entrance into the rear end of the case, so that the pawl may be thrown out of engagement when desired.

On the ratchet-bar N at its upper end when attached to'the window is a shoulder S ,which serves as a stop to limit the movement of the window. At the lower end of the bar the T projection narrows down to a point, so as to the more easily permit the pawl to slide into its proper place on the bar to seek engagement with the ratchet-teeth.

It will be observed that by this construction of the pawl and the ratchet-bar when the pawl is released it looks the window at any position on the ratchet-bar that may be desired, and on drawing back the pawl it will slide up or down on the T projection to permit the free movement of the window, there being sufficient space between the flanges of the T and the ratchets to allow this.

I am aware that ratchet-bars have long been used in connection with sash-locks. There fore I do not make abroad claim thereon; but

What I do claim, and desire to protect by Letters Patent, is-

In a sash-lock a ratchet-bar provided with a longitudinal T projection through its central portion and integral therewith, a pawl actuated by a spring, the pawl being divided providing two points of engagement with the ratchet-teeth on the ratchet-bar and having a square open space between the two points of engagement adapted to engage with the gauges and slide on the T projection as speci- Chicago, Illinois, June 29, 1898.

HERMAN A. PAQUETTE.

Witnesses:

LoUIs ALBERT, M. J. STACK, JUL. FINK. 

